Alerted by a supernova patrol, scientists have used NASA's Chandra X-ray Observatoryto capture a rare glimpse of X-radiation from the early phases of a supernova. Although more than a thousand supernovae have been observed by optical astronomers, the early X-ray glow from the explosions has been detected in less than a dozen cases.

NASA's Galileo spacecraft has successfully zipped past Jupiter's moon Io, the most volcanic body in our solar system. This was the closest look at Io by any spacecraft, and Galileo's cameras were poised to capture the brief encounter.